Spray foam insulation is an insulation and air barrier material that seals walls, floors, and ceiling cavities against air movement.
This includes spaces around electrical outlets and light fixtures, and also where walls meet windows and doors.
Spray foam can be sprayed into an open cavity, like in new construction, attics, crawl spaces, and rim joists. It can also be used in existing homes, commercial buildings, and pole barns. As long as the cavities are open and there is access, then the spray foam can be applied.
Spray foam never loses its shape. Unlike conventional insulation materials, spray foam fills cracks, gaps, and crevices on installation. It won’t compress, sag, or settle over time.